r295610 - Link static PIE programs against rcrt0.o on OpenBSD

Hans Wennborg via cfe-commits cfe-commits at lists.llvm.org
Tue Feb 21 11:23:25 PST 2017


Merged to 4.0 in r295752 as requested in PR32013.

On Sun, Feb 19, 2017 at 11:33 AM, Brad Smith via cfe-commits
<cfe-commits at lists.llvm.org> wrote:
> Author: brad
> Date: Sun Feb 19 13:33:26 2017
> New Revision: 295610
>
> URL: http://llvm.org/viewvc/llvm-project?rev=295610&view=rev
> Log:
> Link static PIE programs against rcrt0.o on OpenBSD
>
> Patch by Stefan Kempf.
>
> Modified:
>     cfe/trunk/lib/Driver/Tools.cpp
>     cfe/trunk/test/Driver/openbsd.c
>
> Modified: cfe/trunk/lib/Driver/Tools.cpp
> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Tools.cpp?rev=295610&r1=295609&r2=295610&view=diff
> ==============================================================================
> --- cfe/trunk/lib/Driver/Tools.cpp (original)
> +++ cfe/trunk/lib/Driver/Tools.cpp Sun Feb 19 13:33:26 2017
> @@ -9035,6 +9035,10 @@ void openbsd::Linker::ConstructJob(Compi
>        if (Args.hasArg(options::OPT_pg))
>          CmdArgs.push_back(
>              Args.MakeArgString(getToolChain().GetFilePath("gcrt0.o")));
> +      else if (Args.hasArg(options::OPT_static) &&
> +               !Args.hasArg(options::OPT_nopie))
> +        CmdArgs.push_back(
> +            Args.MakeArgString(getToolChain().GetFilePath("rcrt0.o")));
>        else
>          CmdArgs.push_back(
>              Args.MakeArgString(getToolChain().GetFilePath("crt0.o")));
>
> Modified: cfe/trunk/test/Driver/openbsd.c
> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/openbsd.c?rev=295610&r1=295609&r2=295610&view=diff
> ==============================================================================
> --- cfe/trunk/test/Driver/openbsd.c (original)
> +++ cfe/trunk/test/Driver/openbsd.c Sun Feb 19 13:33:26 2017
> @@ -67,3 +67,26 @@
>  // CHECK-MIPS64-PIC: as{{.*}}" "-mabi" "64" "-EB" "-KPIC"
>  // CHECK-MIPS64EL: as{{.*}}" "-mabi" "64" "-EL"
>  // CHECK-MIPS64EL-PIC: as{{.*}}" "-mabi" "64" "-EL" "-KPIC"
> +
> +// Check linking against correct startup code when (not) using PIE
> +// RUN: %clang -no-canonical-prefixes -target i686-pc-openbsd %s -### 2>&1 \
> +// RUN:   | FileCheck -check-prefix=CHECK-PIE %s
> +// RUN: %clang -no-canonical-prefixes -target i686-pc-openbsd %s -fno-pie %s -### 2>&1 \
> +// RUN:   | FileCheck -check-prefix=CHECK-PIE %s
> +// RUN: %clang -no-canonical-prefixes -target i686-pc-openbsd -static %s -### 2>&1 \
> +// RUN:   | FileCheck -check-prefix=CHECK-STATIC-PIE %s
> +// RUN: %clang -no-canonical-prefixes -target i686-pc-openbsd -static -fno-pie %s -### 2>&1 \
> +// RUN:   | FileCheck -check-prefix=CHECK-STATIC-PIE %s
> +// RUN: %clang -no-canonical-prefixes -target i686-pc-openbsd -nopie %s -### 2>&1 \
> +// RUN:   | FileCheck -check-prefix=CHECK-NOPIE %s
> +// RUN: %clang -no-canonical-prefixes -target i686-pc-openbsd -fno-pie -nopie %s -### 2>&1 \
> +// RUN:   | FileCheck -check-prefix=CHECK-NOPIE %s
> +// RUN: %clang -no-canonical-prefixes -target i686-pc-openbsd -static -nopie %s -### 2>&1 \
> +// RUN:   | FileCheck -check-prefix=CHECK-NOPIE %s
> +// RUN: %clang -no-canonical-prefixes -target i686-pc-openbsd -fno-pie -static -nopie %s -### 2>&1 \
> +// RUN:   | FileCheck -check-prefix=CHECK-NOPIE %s
> +// CHECK-PIE: "{{.*}}crt0.o"
> +// CHECK-PIE-NOT: "-nopie"
> +// CHECK-STATIC-PIE: "{{.*}}rcrt0.o"
> +// CHECK-STATIC-PIE-NOT: "-nopie"
> +// CHECK-NOPIE: "-nopie" "{{.*}}crt0.o"
>
>
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